fix some documentation, fix nextcloud build

docs/installation_instructions.rst

@@ -54,14 +54,17 @@ You should also have a trusted machine to run the installer on (we call this the
 ``provisioning machine``). All the commands listed in these instructions should
 be run on the provisioning machine, unless specified otherwise:
 
--  You need Python 3 with its development files, Pip and Git installed
-   (``apt install python3-pip python3-dev git``)
--  We recommend using a `python
-   virtualenv <https://docs.python.org/3/tutorial/venv.html>`__ to make
-   sure we do not change any of your other projects. Install virtualenv
-   by running ``pip3 install --user venv`` or
-   ``apt install python3-venv``
--  ``ssh-agent`` to give you access to your VPS
+- You need Python 3 with its development files, Pip and Git installed
+  (``apt install python3-pip python3-dev git``)
+- We recommend using a `python
+  virtualenv <https://docs.python.org/3/tutorial/venv.html>`__ to make
+  sure we do not change any of your other projects. Install virtualenv
+  by running ``pip3 install --user venv`` or
+  ``apt install python3-venv``
+- ``ssh-agent`` to give you access to your VPS
+- ``kubectl``, installable with ``snap install kubectl``
+- ``flux``, follow the `flux documentation
+  <https://fluxcd.io/docs/installation/#install-the-flux-cli>`__
 
 Getting the installation script
 -------------------------------

flux2/infrastructure/sources/nextcloud.yaml

@@ -13,5 +13,4 @@ spec:
   # For all available options, see:
   # https://toolkit.fluxcd.io/components/source/api/#source.toolkit.fluxcd.io/v1beta1.GitRepositoryRef
   ref:
-    # tag: 0.2.8
-    branch: 967-prevent-loss-of-onlyoffice-documents
+    tag: 0.2.9

install/overrides/oas-nextcloud-override.yaml

@@ -7,6 +7,8 @@ data:
   values.yaml: |
     # By overriding these values, Nextcloud and ONLYOFFICE will work on ACME
     # staging certificates.
+    # WARNING: ONLYOFFICE can not save files back to nextcloud if you use
+    # staging certificates. Only use this for testing purposes!
     onlyoffice:
       unauthorizedStorage: true
       httpsHstsEnabled: false